press at all. Helium – an inert‚ odourless‚ monatomic element known to lay people as the substance that makes balloons float and voices squeak when inhaled – could be gone from this planet within a generation. B) Helium itself is not rare; there is actually a plentiful supply of it in the cosmos. In fact‚ 24 per cent of our galaxy’s elemental mass consists of helium‚ which makes it the second most abundant element in our universe. Because of its lightness‚ however‚ most helium vanished from our
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Tabulate the characteristics of water • Water appears in nature in all three common states of matter (solid‚ liquid‚ and gas) • Water is tasteless and odorless • Water is a good polar solvent and is widely referred to as universal solvent • Water covers 71% of the Earth’s surface • Water has a high specific heat • Water has a high heat of vaporization. • Water’s greatest density occurs at 4C 2. Construct a graph showing water distribution Earth’s Water
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of 35.5 L at a pressure of 100.0 kPa and a temperature of 100. (C? After determining the number of moles‚ calculate the number of grams of chlorine (Cl2) contained in this container? 4. What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20. (C and standard pressure? 5. Calculate the volume which 1.00 mole of a gas occupies at STP. 6. What volume would 20.0g of CO2 occupy at a temperature of 25 (C and a pressure of 105
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reference. The paper firstly introduces the wireless communications and then switches to fourth generation in wireless communications. The paper then discusses about High Altitude Airships‚ the “STRATELLITES” which are actually unmanned Kelvar balloons filled with helium which are used instead of towers for wireless communication‚ each of which replace hundreds of towers and reduce the cost of wireless communications. They also overcome the disadvantage of simple towers which could not provide proper coverage
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GOOGLE BALLOON ABSTRACT: Many of us think of the Internet as a global community. But two-thirds of the world’s population does not yet have Internet access. Project Loon is a network of balloons traveling on the edge of space‚ designed to connect people in rural and remote areas‚ help fill coverage gaps‚ and bring people back online after disasters. In an effort to provide affordable Internet access in areas with little or no infrastructure‚ Google has begun lofting wireless Internet
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LESSON 05.01 Wood blocks- solid Hammer- solid Lightning- plasma Fluorescent light bulb- plasma Steam and helium filled balloon is gas Water from a faucet and swimming pool is liquid - Can be distinguished at the molecular level by how the particles are held together - The phase of matter is considered a physical property because a change in a substance’s phase does not change the chemical properties or identity of the substance. - The phases of matter are determined by the kinetic energy
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obtained by fractional distillation of air. • They are often used aboard chemical tankers and product carriers (smaller vessels). • Helium‚ Neon‚ Argon‚ Krypton‚ Xenon‚ Radon and are inert gases. • Duplet (Helium) or Octet • Full valence shell • • • • Weak interatomic force Very low melting and boiling points. Monatomic gases under standard conditions Helium has several unique qualities when compared with other elements: – Boiling and melting points are lower than those of any other
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he was planning on making Booth the figurehead of the army‚ and probably later on the whole country. After they escaped from Duke Balthasar‚ Sherlock told Amyus Crowe what happened‚ and Amyus Crowe came up with the plan that they will use hot air balloons and go ever to where Balthasar’s army is hiding and bomb his army. Sherlock wasn’t happy with the plan as they would be killing lots of innocent people and he didn’t want to do that‚ so he made his own plan. For the first part of his plan he went
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135dm3 of gas in a container at a temperature of 26000C. If the gas was cooled until the volume decreased to 75dm3‚ what would the temperature of the gas be? 6. A balloon is filled with 35.0dm3 of helium in the morning when the temperature is 20.000C. By noon the temperature has risen to 45.000C. What is the new volume of the balloon? 7. CaCO3 decomposes at 120000C to form CO2 gas and CaO. If 25dm3 of CO2 are collected at 120000C‚ what will the volume of this gas be after it cools to 2500C? 8
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Weather and Atmospheric Water Humidity- the amount of water in the air in a particular spot. Relative Humidity- the percentage of water vapor a certain volume of air is holding relative to the max amt it can contain. 80% humidity means that it is holding 80% of the total amt of water that it can hold at that temp. Heat Index- shows what the temperature feels like due to humidity. Dew Point- the point at which air becomes saturated with water. Water will condense from the air as dew‚ if the
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